Clinical observation of pin-ledge retained resin-bonded fixed partial denture / 中华口腔医学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To observe a short-term clinical effect of pin-ledge retained metal plate resin-bonded fixed partial denture (RBFPD).</p><p><b>METHODS</b>Sixty-five patients were restored with the pin-ledge retained metal plate RBFPD. Retention and marginal integrity of RBFPDs, secondary caries and mobility of abutments, and gingival bleeding index were clinically evaluated immediately after cementation and every 6-month period later. The parallel irradiating X-ray films were also taken to evaluate alveolar bone resorption.</p><p><b>RESULTS</b>A total of 74 RBFPDs were made for all 65 patients. The mean follow-up period was 12.4 months. There were three RBFPDs debonded and the debonding rate was 4%. Nine patients had abutment dentin sensitivity after restoration (14%) with a mean duration of 6.3 months.</p><p><b>CONCLUSIONS</b>The pin-ledge retention form could increase the short-term survival rate of the RBFPD obviously and obtain favorable clinical effects.</p>